investigators did not read him his miranda rights when he was captured. they invoked what they call the public safety exception. it permits law enforcement officials to interrogate a suspect and use that information as direct evident in court, and that is causing some controversy out there. let's talk about that. we'll talk about that in a few moments. also want to talk about other issues. joining us, former u.s. attorney doug jones who led the prosecutor against eric ruduffel, the 1996 atlanta olympic bomber. thank you for joining us. first of all, let's talk about this video. this video that has now surfaced that cnn has confirmed, a well known jihadist in dagestan who himself was killed in december, the video was posted on tamerlan tsarnaev's youtube channel. since then, it's been deleted. what does that say, if you're a u.s. attorney investigating this case, what does that say to you? >> well, wolf, i think it would be one of two things. there obviously could be some contact since he traveled over that way. there could have been some contact. there co